If you 'keep an eye out' as we say in English (be watchful), you might find one during the day, resting somewhere you can photograph it, quite possibly on a tree trunk. In that situaution, its camouflage will make it difficult to see, but you may notice it flying to or from the place. I had that experience in Paphos, in a roadside garden. I was just lucky to notice it flying and watch it land on the trunk of a Jacaranda, where it seemed to almost disappear. It let me get close enough to photograph it, and I am very pleased with the result. Then it flew off. I was surprised how quietly it flew for so large an insect.

yes, sometimes I can see it but they are too far up, Ihave never been abletosee oneclose up.Some time agoI sawsome photos takenin Cyprusand other cities/partsof Greece, wherethe cicadaswere alsoon the wallsof the house,in the streets! Not to mentionthe Australian